Spring-wheel.



M. PRESSLER.

SPRING WHEEL.

APPLIOATION FILED NOV. 7, 1908.

957,574, Patented May 10, 1.910.

A TTORNEYS INVENTOH v MARTIN PRESSLER, OF STAMFORD, CONNECTICUT.

SPRING-WHEEL.

Specification of Letters Patent.

Patented May 10, 31910.

Application filed November 7, 1908. Serial No. 461,507.

T (Ill whom 'it may concern:

Be it known that I, MARTIN PRnssLnR, a citizen of the United States, anda resident of Stamford, in the county of Fairfield and State ofConnecticut, have invented a new and Improved Spring-Wheel, of which thefollowing is it full, clear, and exact description.

l bile trucks and the like.

This invent-ion relates to resilient wheels adapted for use inconnection with automo- The object of the invention is to provide animproved wheel construction whereby resilient means may be locatedbetween the hub and the tire of the wheel for absorbing shocks due toinequalities or obstructions in the path overwhich the wheel is passed.Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in both the figures, and in which- Figure 1 is asideelevation of a wheel embodying my invention; and Fig. 2 is a centralvertical sect-ion broken away at the upper end.

In the present embodimentthe wheel comprises a hub 1 havin spokes 2radiating therefrom, which may he cast integral therewith. The hub 1 ismounted about a sleeve 4, having a flange 5, and a sleeve 8 having aflange 9 is mounted about the sleeve 4. The hub 1 is held between theflanges 5 and 9 and secured thereto by bolts -10, passing through theflanges and the hub. The periphery of the hub 1 is provided with annularflanges 12 and 14 having notches 16 extending from the outer edge ofsaid flanges for the reception of studs 18 which are screw-threaded andheld in place by means of nuts 20. j

The rim of the wheel comprises annular members 25 and 26, having flatperipheral surfaces 27 and :28 and inclined flanges 29 and 30,respectively, which form seats for the reception of the tire blocks Saidmembers 25 and 26 are clamped against the tire blocks by means of bolts31. The annular members 25 and 26 have flat webs extending inwardly fromthe tire bearing and separated by small projections 36 and 37. Thesefiat webs are spaced apart a suflicient distance to allow the spokes 2to pass between them freely, and the projections 36 and 37 act asclamping means to prevent the rim from rotating with respect to the hubofthe wheel. Extending laterally from the flat-- webs of the members 25and 26 are flanges 38 and 39, having notches 40 for the reception ofstuds 41 held in place by nuts 42..

Between the hub 1 and the rim of the wheel, a series of sprin s areplaced, having their ends surroun ing the studs 18 and 41, respectively.

The tire blocks 35 may be formed of fiber composition and have springsembedded therein to prolong the life of said blocks. The sleeve 4 may beprovided with a keyway to coiiperate with a key upon a driving shaft, ifthe wheel is intended to be a driving wheel, otherwise, the sleeve 4 maybe formed with a smooth bore as shown.

From the construction above set forth, it will be seen that the rim. ofthe wheel may move radially with respect to the hub,'and

the shocks received by the tire are absorbed by the springs 50.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

1. A vehicle wheel, comprising a hub provided with spokes and oppositelyarranged annular flanges having notches in their edges, a rim formed oftwo members, each provided with an angular flange at its outer end, andan inwardly projecting web having a-projection on its inner face and anannular' lateral flange on its'outer face, said flange having notches inits edges, the said members being secured together by bolts arrangedbetween the flanges thereof, the angular flanges forming a tireretaining groove and the webs, a chamber in which the spokes slide,studs detachably secured in the notches of the flanges of the hub andrim, and springs resting upon the said flanges and into which projectthe said studs.

'2. In a vehicle wheel, the combination of a hub having spokes andoppositely arranged annular flanges, a rim formed of two members securedtogether and having their external peripheries shaped to form atheretaining groove, the members having inwardly extending webs spacedapart totorin a chamber therebetween to receive thespokes and eachprovided with an annular laterally ion projecting flange, studs on theflanges of the hub and rim, and springs resting on the said flanges andinto which project the studs. 3. In a vehicle wheel,the combination of ahub having spokes and oppositely arranged annular flanges, a rim formedof two mem-- bers secured together and having their peripheries shapedto form a tire-retaining groove, the members being provided withinwardly extending and spaced webs and between which the spokes looselyextend and with annular laterally projecting flanges between thetire-retaining groove and the ends of the webs, studs detachably securedto the 10 fln-nges of the hub and rim, and springs resting on the saidflanges and into Which project the studs.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

LIARTIN PRESSLER.

Witnesses: v

JOHN WV. LEAoH, CHAS. L. LEDIN.

